<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Index</title>
</head>
<body>
    <h1>Hello World!</h1>
    <a href="/file">我的文件</a>
    <a href="/shared_file">共享文件</a>
    <a href="/logout">退出</a>
</body>
</html>
